[MD settings] update i18n replacements in bluetooth settings

chrome/browser/resources/settings/bluetooth_page/bluetooth_page.html

 <link rel="import" href="chrome://resources/html/i18n_behavior.html">
 <link rel="import" href="chrome://resources/html/polymer.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/iron-collapse/iron-collapse.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/iron-flex-layout/classes/iron-flex-layout.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/iron-list/iron-list.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/neon-animation/neon-animatable.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-button/paper-button.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-toggle-button/paper-toggle-button.html">
 <link rel="import" href="chrome://md-settings/icons.html">
 <link rel="import" href="chrome://md-settings/settings_page/settings_animated_pages.html">
@@ skipping 28 matching lines @@
         padding: 0;
         width: 500px;
       }
     </style>
     <settings-animated-pages id="pages" current-route="{{currentRoute}}"
         section="bluetooth">
       <neon-animatable id="main">
         <div class="settings-box first">
           <div class="layout horizontal center flex">
             <iron-icon icon="settings:bluetooth"></iron-icon>
-            <span class="flex" i18n-content="bluetoothEnable"></span>
+            <span class="flex">$i18n{bluetoothEnable}</span>
             <cr-expand-button id="expandListButton"
                 hidden$="[[!bluetoothEnabled]]"
                 expanded="{{deviceListExpanded}}">
             </cr-expand-button>
             <paper-toggle-button id="enableBluetooth"
                 checked="{{bluetoothEnabled}}"
                 on-change="onBluetoothEnabledChange_">
             </paper-toggle-button>
           </div>
         </div>
         <iron-collapse opened="[[canShowDeviceList_(bluetoothEnabled,
                                                     deviceListExpanded)]]">
           <div id="deviceList" class="list-frame vertical-list"
               on-device-event="onDeviceEvent_">
             <template is="dom-repeat" items="[[deviceList]]"
                 filter="deviceIsPairedOrConnecting_">
               <bluetooth-device-list-item device="[[item]]" class="list-item">
               </bluetooth-device-list-item>
             </template>
             <div class="no-devices layout horizontal center"
-                hidden$="[[haveDevices_(deviceList.splices)]]"
-                i18n-content="bluetoothNoDevices">
+                hidden$="[[haveDevices_(deviceList.splices)]]">
+              $i18n{bluetoothNoDevices}
             </div>
           </div>
           <div class="settings-box" hidden$="[[!bluetoothEnabled]]">
-            <paper-button i18n-content="bluetoothAddDevice"
-                class="primary-button" on-tap="onAddDeviceTap_">
+            <paper-button class="primary-button" on-tap="onAddDeviceTap_">
+              $i18n{bluetoothAddDevice}
             </paper-button>
           </div>
         </iron-collapse>
       </neon-animatable>
     </settings-animated-pages>
 
     <paper-dialog modal id="deviceDialog" class="layout vertical"
         on-iron-overlay-opened="onDialogOpened_"
         on-iron-overlay-closed="onDialogClosed_">
       <template is="dom-if" if="[[dialogIsVisible_(dialog, 'addDevice')]]"
@@ skipping 14 matching lines @@
             pairing-event="[[pairingEvent]]"
             on-response="onResponse_"
             on-close-dialog="onCloseDialog_">
         </settings-bluetooth-pair-device-dialog>
       </template>
     </paper-dialog>
 
   </template>
   <script src="bluetooth_page.js"></script>
 </dom-module>